485138808 has 288 divisors, whose sum is σ = 1732872960. Its totient is φ = 125737920.

The previous prime is 485138803. The next prime is 485138821. The reversal of 485138808 is 808831584.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (485138803) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1047585 + ... + 1048047.

It is an arithmetic number, because the mean of its divisors is an integer number (6016920).

Almost surely, 2^485138808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 485138808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866436480).

485138808 is an abundant number, since it is smaller than the sum of its proper divisors (1247734152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

485138808 is a wasteful number, since it uses less digits than its factorization.

485138808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 485138808 is about 22025.8667933864. The cubic root of 485138808 is about 785.7577483144.

The spelling of 485138808 in words is "four hundred eighty-five million, one hundred thirty-eight thousand, eight hundred eight".